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Bidirectional Ventricular Tachycardia
Bidirectional ventricular tachycardia occurs when the QRS axis alternates with every other beat. This is a pathognomonic rhythm during digoxin toxicity, however is relatively rare.
The Brugada criteria for ventricular tachycardia is met with both of the QRS morphologies. See the ventricular tachycardia review below for a 12-lead ECG tracing of bidirectional ventricular tachycardia in a patient with digoxin toxicity.
Related Topics: Ventricular Tachycardia